:root {
  --bg: #f4f7fb;
  --card: #ffffff;
  --ink: #0e1b2a;
  --muted: #5b6b7d;
  --line: #dbe3ec;
  --accent: #1f7a8c;
  --accent-ink: #ffffff;
  --warn-bg: #fff2d9;
  --warn-ink: #8a5a00;
  --danger: #b3261e;
  --radius: 12px;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0e1b2a;
    --card: #15263a;
    --ink: #e8eef5;
    --muted: #9fb1c4;
    --line: #263a52;
    --accent: #4bb3c6;
    --accent-ink: #06202b;
    --warn-bg: #4a3608;
    --warn-ink: #ffd68a;
    --danger: #ff8a80;
  }
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font: 16px/1.5 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}

main { max-width: 820px; margin: 0 auto; padding: 1rem 1rem 4rem; }

h1 { font-size: 1.3rem; margin: 0 0 1rem; }

.topbar {
  display: flex;
  flex-wrap: wrap;
  gap: .5rem 1rem;
  align-items: center;
  justify-content: space-between;
  padding: .75rem 1rem;
  background: var(--card);
  border-bottom: 1px solid var(--line);
}

.brand { font-weight: 700; text-decoration: none; color: var(--ink); }

.topbar nav { display: flex; gap: 1rem; align-items: center; }
.topbar nav a { color: var(--muted); text-decoration: none; font-size: .92rem; }
.topbar nav a.on { color: var(--ink); font-weight: 600; }

.linklike {
  background: none;
  border: 0;
  padding: 0;
  color: var(--muted);
  font: inherit;
  font-size: .92rem;
  cursor: pointer;
}

.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1rem;
  margin-bottom: 1rem;
}

.login { max-width: 360px; margin: 3rem auto; display: grid; gap: .75rem; }

label { display: grid; gap: .25rem; font-size: .85rem; color: var(--muted); }

input, select, button, .button {
  font: inherit;
  padding: .55rem .7rem;
  border-radius: 8px;
  border: 1px solid var(--line);
  background: var(--card);
  color: var(--ink);
}

input:focus-visible, select:focus-visible, button:focus-visible, a:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

button, .button {
  background: var(--accent);
  color: var(--accent-ink);
  border-color: transparent;
  cursor: pointer;
  text-decoration: none;
  text-align: center;
  white-space: nowrap;
}

button.ghost, .button.ghost {
  background: transparent;
  color: var(--ink);
  border-color: var(--line);
}

button.danger { background: transparent; color: var(--danger); border-color: var(--line); }

.add summary { cursor: pointer; font-weight: 600; }
.add[open] summary { margin-bottom: .75rem; }

.grid {
  display: grid;
  gap: .75rem;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  align-items: end;
}
.grid .field-name, .grid .field-note { grid-column: 1 / -1; }
.grid label small {
  display: block;
  margin-top: .25rem;
  font-size: .75rem;
  font-weight: 400;
  color: var(--muted);
}

.row { display: flex; gap: .5rem; margin-top: .75rem; }

.filters { display: flex; gap: .5rem; margin-bottom: .75rem; }
.filters input { flex: 1; }

.chips { display: flex; flex-wrap: wrap; gap: .4rem; margin-bottom: 1rem; }

.chip {
  display: inline-flex;
  gap: .35rem;
  align-items: center;
  padding: .3rem .6rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--card);
  color: var(--ink);
  text-decoration: none;
  font-size: .85rem;
}
.chip.on { background: var(--accent); color: var(--accent-ink); border-color: transparent; }
.chip span { color: inherit; opacity: .7; }

.items { list-style: none; margin: 0; padding: 0; display: grid; gap: .5rem; }

.item {
  display: flex;
  flex-wrap: wrap;
  gap: .75rem;
  justify-content: space-between;
  align-items: center;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: .7rem .85rem;
}

.item.old { border-color: var(--warn-ink); }
.item.done { opacity: .75; }

.item-main { display: flex; gap: .7rem; align-items: flex-start; min-width: 0; }
.item .emoji { font-size: 1.4rem; line-height: 1.3; }
.item p { margin: 0; }
.item .name { font-weight: 600; }
.item .qty { font-weight: 400; color: var(--muted); }
.item .meta, .item .note { font-size: .82rem; color: var(--muted); }

.badge {
  display: inline-block;
  margin-left: .3rem;
  padding: .05rem .4rem;
  border-radius: 999px;
  background: var(--warn-bg);
  color: var(--warn-ink);
  font-size: .75rem;
}

.item-actions { display: flex; gap: .4rem; margin-left: auto; }
.item-actions button, .item-actions .button { padding: .4rem .7rem; font-size: .85rem; }

.empty { color: var(--muted); text-align: center; padding: 2rem 0; }
.error { color: var(--danger); margin: 0; font-size: .9rem; }

@media (max-width: 480px) {
  .item { align-items: stretch; }
  .item-actions { width: 100%; }
  .item-actions form { flex: 1; }
  .item-actions button, .item-actions .button { width: 100%; }
}